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Find the value of discriminant. (ii) 2...

Find the value of discriminant.
(ii) `2y^2-5y+10=0`

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The correct Answer is:
(ii) `b^2-4ac=-55`
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TARGET PUBLICATION-QUADRATIC EQUATIONS-Practice set 2.5
  1. The roots of the each of the following quadratic equations are real ...

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  2. For what value of k, are the roots of the quadratic equation kx (x-...

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  3. Fill in the gaps and complete. (i)

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  4. Fill in the gaps and complete. (ii)

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  5. Fill in the gaps and complete. (iii)

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  6. Find the value of discriminant. (i) x^2+7x-1=0

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  7. Find the value of discriminant. (ii) 2y^2-5y+10=0

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  8. Find the value of discriminant. (iii) sqrt(2)x^2+4x+2sqrt(2)=0

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  9. Determine the nature of roots of the following quadratic equations. ...

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  10. Determine the nature of roots of the following quadratic equations. ...

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  11. Determine the nature of roots of the following quadratic equations. ...

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  12. Form the quadratic equation from the roots given below. (i) 0 and 4

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  13. Form the quadratic equation from the roots given below. (ii)3 and -1...

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  14. Form the quadratic equation from the roots given below. (iii) 1/2,1/...

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  15. Form the quadratic equation from the roots given below. (iv)2-sqrt(5...

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  16. Sum of the roots of a quadratic equation is double their product. Fi...

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  17. alpha,beta are roots of y^2-2y-7=0 find, (i) alpha^2+beta^(2) .

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  18. alpha,beta are roots of y^2-2y-7=0 find, (i) alpha^2+beta^(2) .

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  19. The roots of the each of the following quadratic equations are real ...

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  20. The roots of the following quadratic equation are real and equal. Find...

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